<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <ul>
            <li v-for="(item,index) in dataList">{{item.content}}</li>
        </ul>
        <button @click="huan">走一走看一看</button>
    </div>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.7.16/dist/vue.js"></script>
    <script>
        const app = new Vue({
            el:'#app',
            data:{
                dataList:[
                    {id:1,content:'美女'},
                    {id:2,content:'帅哥'},
                    {id:3,content:'大美女'}
                ]
            },
            methods:{
                huan(){
                    this.dataList.push(this.dataList.shift())
                }
            }
        })
    </script>
</body>
</html>